Technical reports

  • All 320
  • Environmental factors and damage 50
  • Fertilization and soil management 34
  • General information 106
  • Insects and pests 82
  • Plant health care 91
  • Tree diseases 81
  • Tree management and consulting 15

Lethal bronzing of palm

Canada, Great Britain, Ireland, United States

Lethal bronzing of palm (formerly Texas Phoenix Palm Decline) is a vascular disease caused by a specific type of phyt…

Leyland cypress (Cupressus x leylandii) is an evergreen that has become very popular in the landsca…

Lichen and trees

Canada, Great Britain, Ireland, United States

Lichens are non-parasitic organisms consisting of a symbiotic relationship between a fungus and a green alga or cyanobac…

Lightning protection FAQ

Canada, Great Britain, Ireland, United States

Tree lightning protection systems have an excellent record of protecting trees. Trees with a system installed accordi…

Lightning protection fuses

Canada, Great Britain, Ireland, United States

Information from lightning strikes can provide valuable data that enables us to learn more about how lightning affect…

Thousands of trees are struck by lightning every year. These trees will have varying degrees of damage ranging from c…

Lindens are notable shade trees, widely used as street trees and ornamentals. They are renowned for highly fragrant, …

Live oak (Quercus virginiana) is perhaps the most highly prized landscape tree throughout Texas. Native to t…

London plane (Platanus x hispanica) is a hybrid sycamore resulting from crosses of Americ…

Madrone canker

Canada, Great Britain, Ireland, United States

Madrone (Arbutus) canker, the most common disease found on Pacific madrone, begins as bark discoloration, followed by…